William h



(No Model.)

W. H. BLUETT.

ATOMIZ'ER.

Patented Oct. 6, 1885 Za/wbr N4 mins www' www l C UNITED STATES` "PATENT OFFICE. A

VILLIAM H. BLUETT, OF VVATERTOVN, NEV

ATOMIZER.

SPECIFICATEON forming part of Letters Patent No. 327,9 77, dated October 6, 1885.

Application filed lTune 3, 1885.

To all whom it may concern:

Be it known that I, WILLIAM H. BLUETT, of Watertown, in the county of Jefferson and State of New York, have invented a new and useful Improvement in Atomizers,` which improvement is fully setforth in the following specification. v y

This invention has reference to atomizers, or apparatus for producing a fine spray of medicinal, disinfecting, andV other liquids; and its object is to enable the size of the spray to be easilyand accurately regulated, to lessen thev liability of clogging or fouling the discharge-tube, to enable the latter to be easily cleaned when required for use, to increase the range of usefulness of the device, and to enable it to be employed as a syringe. y

In the present invention the liquid-tube is, as is common, surrounded by a larger tube to form an annular air-passage which, communicates with a suitable air bulb or bulbs. The liquid-tube, instead of having a small opening in the extreme end, is closed at that point, and has a number of perforations at the sides near the end. A cap fits over the end of the tube, and has a small perforation in its end. The

air-passage also communicates with the inside of the cap, and the air mixing with the liquid therein forms the spray, which is discharged through the opening in the cap. These parts are so shaped that by moving the cap forward or back the spray can be made coarser or ner, as may be desired. The outlet-openings of the liquid-tubeare quite large, so that they may be readily cleaned with a pin or by blowing through the tube, while the cap itself may be removed entirely. The inlet-tube can also be made of larger diameter than customary. The construction therefore facilitates the use of thick liquids-such as glycerine, oils, 85e.

In the accompanying drawings, which form a part of this specification, Figure 1 is a perspective view of the device; Fig. 2, a longitudinal section; and Fig. 3, a view, on an enlarged scale, of the discharge end of the tube with the cap removed.

rlhe outer tube, a, ncloses the liquid-tube b, the relative sizes being such as to leave au annular space, c, for the passage of air between the two. Tube bprojects downward, so

Serial No. 167,467. (No model.)

as to enter the bottle or reservoir containing theliquidto be sprayed. It terminates at its upper end in a conical point, which is closed at its end, but has openings e in the sides of the cone. The conical part d projects beyond tube a, which near its upper end is contracted, forming a shoulder at f. It fits tightly at its end around the tube b; but the latter is grooved at g, to furnish openings through which the air can pass from passage c.

The cap h is made to fit closely over the contracted part of tube a, its movement thereou being limited by the shoulder f. It has in its point a small opening, i. Then cap h is in place, a small chamber is formed between its inner wall and the conical part d of the liquid-tube, with which chamber the liquidopenings e and air-holes g communicate. By moving cap 7L forward or back the space 'between it and the coned is increased or diminished, whereby the size of the spray issuing from orifice z' can be regulated. As shown, the cap h is made to slide on tube a; but, if preferred, the parts can be screw-threaded, so that the cap may be adj usted by turning. f The tube b is made of sufficiently large internal diameter to permit of the use of'oils or other thick liquids, while the discharge-openings e are also of comparatively large size, so that they can easily be kept clear.

The discharge-opening i is also of larger size than usual to permit of the use of such liquids. It is evident that the size of said orifice z' is variable, the effective opening depending upon its position with reference to the closed conical point d, since by moving the cap toward the shoulder f the solid point d enters farther into said orifice and adjusts the instrument for use in spraying ordinary liquids, while by moving the cap in the opposite direction the full size of said opening t' is available, fitting the instrument for use with oils and the like, or as a syringe.

The air-forcing means are or may be of ordinary construction. ing bulbs, k le', are connected by a iieXible tube, Z, with the air-passage c. By the use of two bulbs a continuous current of air can be maintained, though obviously the second bulb is not essential. The bulbs 7c are provided As shown, two air-foro- 9 5 IOO with the usual valves, and as their construction is well known and forms no part of this invention further description thereof is unnecessary. v

The operation of the device will be readily understood. Upon the compression of the bulbs k a current of air is forced through the passage c, part of the air also going downward into the liquid-receptacle. The liquid being drawn up through tube b escapes through openings e into the interior of cap h, where it meets and intimately mingles with the streams of air entering through openings g, and nally issues as aspray from opening i of said cap.

To use the device "as a syringe the cap is adjusted so as to secure the largest size orilice. Of course the end of the air-tube is to be immersed in the liquid, so that liquid will enter the passage instead of air.

The tubes a and b and conical cap h may conveniently be made o f hard rubber, though, obviously, other materials may be employed instead. The invention, moreover, is not limited to the precise details of construction shown and described, as these may be varied without departing from the spirit of the .invention.

I am aware that an atomizer has been devised wherein the liquid-tube is closed at Jthe end and provided with lateral dischargeopenings, and an adjustable centrally-perforated cap placed over the end of said tube, so as by its lengthwise movement to vary the de gree of fineness of the spray. I do not claim such construction as my invention. My object is not so much to vary the iineness of the spray, which has been done in various ways heretofore, but to vary the size of the discharge-outlet. To this end the tip of the liquid-.tube is made conical, and the closed point thereof venters more or less into the opening in the conical cap. This construction enables the instrument, in addition to its ordinary uses, to be employed with a class of medicinal liquids that cannot be used with the ordinary atomizer, and to be employed also as a syringe. My construction also differs from that of the device before referred to,in that the disch argeopenings in the liquid-tube are placed in the slanting walls of the conical tip.

I claim- 1. In an atomizer, the combination, with the liquid-tube having a closed tip and lateral openings near the end thereof, and the airtube surrounding said liquid-tube down to said tip, of the cap inclosing the ends of both said air and liquid tubes, and being provided with a central opening, the point of said tip entering more or less into said opening, thereby regulating its size and enabling the device to be used with liquids of different consistence, or as a syringe, substantially as described.

2. In an atomizer, the combination, with the air and liquid tubes, the latter being provided with a closed conical tip, and with discharge-openings in the slanting walls of said conical tip, of the conical cap inclosing the ends of both said tubes, so that the air and liquiddischarge into and mix within said cap, the point of said tip entering the opening in saidtcap, and the latter being adjustable to vary the size thereof, substantially as and for the purposes set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WM. H. BLUETT.

Witnesses:l

J. C. WILsoN, SAM CHILD. 

